Investigating the Existence of a Cathode Electrolyte Interphase on Graphite in Dual-Ion Batteries with LiPF6-Based Aprotic Electrolytes and Unraveling the Origin of Capacity Fade

Abstract

Cathode Electrolyte Interphase

The cover illustrates the debate about the presence of cathode electrolyte interphase (CEI) in course of electrolyte oxidation in high voltage batteries, in particular dual ion batteries (DIBs). In article number 2400330 by Johannes Kasnatscheew and co-workers, graphite-based cathode active material (CAM) is free of transitions metals (TMs) and TM-related impurities, which simplifies research of CAM surface. In fact, no CEI indications are found, hardening CEI as “myth”.